bolt pre 中文意思是什麼
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Technology of pre - stressed bolt support for rock floor gateway in deep mine complicated conditions
深井復雜條件下底板巖巷預應力錨桿支護技術 -
Using the optimum calculating method, some important technical parameters could be determined, that is, optimum supporting force, allowable deformation of rock mass, cross section area of u - shape set, pre - tight force and diameter of the bolt as well as torque to provide optimum supporting force
用這一計算方法能求出巖石恆阻支護的重要技術參數，即最優（小）恆阻支護力、圍巖最大允許變形量、恆阻u型鋼支架的截面積、聯接螺栓的預緊力和直徑及最優支護力的擰緊力矩。 -
Abstract : based on the fuzzy mathematics, it establishes the rules of the fuzzy reliability design for the bolt - joint set, discusses the effect of pre - tighten force and the axial changing load on the set, and shows an example
文摘:將模糊數學理論引入可靠性設計中，考慮預緊力和軸向變載荷狀態的影響因素，建立螺栓聯接的模糊可靠性設計準則，並給出了設計實例。 -
Depend on the advantage of military industry, it has been a professional company which could research, develop, design and machining pre - stress cable anchor, bolt and other machine
藉助軍工優勢成為一家集科研設計加工預應力錨索錨具和機具的專業企業。 -
A new method of pre - tightening for king diameter coupling bolt
大直徑聯接螺栓預緊的一種新方法 -
In this paper the author describes a way of determining the residual pre - tightening force after adding elastic elements to the connecting bolt at the flange on ball mill ' s shell and therefore a formula is induced
闡迷了球磨機筒體法蘭聯接螺栓增加彈性元件后其剩餘預緊力的確定方法，並導出了相應的計算公式。 -
Products are : super high pressure electric, pneumatic, manual oil pump ; pre - stress jack for the use of coal mine and construction ; steel bar and cable scissor ; all kinds of bolt for safety supporting and bolting ( km19 and km22 bolt have all got the certificate of “ ma ” in china. ) ; cable anchor and bolt test stand ; hydraulic nut scissor and etc
產品有防爆式超高壓電動、風動、手動油泵；煤礦、建築用預應力張拉千斤頂；鋼筋、鋼絞線切斷器；安全支護用各種錨具（ km19 、 km22錨具在國內率先取得煤安證書） ；錨索錨具靜載拉伸試驗臺；液壓螺母破切器等。 -
At the last of this paper, we summarized the deficiencies of simulating pre - stressing anchor and proposed the new and accurate simulating method which is given up the traditional tow points applied forces and applied a point reverse forces, made beam element simulate the anchor bolt, made interface element simulate concrete. in addition, we proposed two simulating methods applied on flock anchors which improved on considering the contribution of anchors " tangent - orientation stiff. one is post - stressing offset method ; the other is anchor element method
另外，本文還提出了兩種改進原有群錨模擬中沒有考慮錨索限制變形的側向剛度貢獻的方法，即后續張拉補償法和錨索單元法，通過平面直線型滑動破壞中這兩種方法與傳統群錨的兩點集中力法的比較、分析，表明這兩種方法的結果與實際情況較為相符。 -
Research and application of high pre - clamping bolt fitted mounting apparatus
高預緊力錨桿配套安裝機具的研究應用 -
Analysis of pre - tightened stress has been made on pre - stress of low - pressure flange ' s spiral wound gasket, and through changing structure and controlling the manufacture process of gasket, some experiment studies have been made to let mechanical performance meet the needs of bolt load and let flange joint meet the needs of seal behavior
摘要分析了低壓管法蘭用纏繞式墊片的預緊應力，對通過墊片工藝結構的調整使其力學性能與緊固件的要求一致，從而使法蘭接頭符合操作的密封性要求進行了試驗研究。 -
Application of high - strength pre - stress bolt supporting in deep high - stress soft rock roadways
高強預應力錨桿支護在深部軟巖巷道的應用 -
Abstract : connected with the practical project, the paper tries to discussthe problem of anchor bolt setting in large - scale power equipment ' s foundation such as fan and electromotor used in removing dust project, analyzes the feasibility of a new grouting method in pre - setting hole and puts forward its popularization value in other projects
文摘:結合實際工程，討論了在除塵工程中風機、電機等大型動力設備基礎地腳螺栓埋設的問題，分析了一種新型的預留孔灌漿方法的可行性，並提出了其在其它工程中的推廣價值。 -
Employing flac3d numerical simulation and engineering practice illustrates the mechanics effect and work mechanism of bolt rope in supporting and expatiates that pre - stress of bolt rope plays a key role on supporting
摘要通過flac （上標3d ）數值模擬和工程實踐，說明了錨索在支護當中的力學效應和作用機理，並闡述了錨索預應力在支護中的關鍵性。
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